JPH0829978B2 - Ceramics sintered body - Google Patents
Ceramics sintered bodyInfo
- Publication number
- JPH0829978B2 JPH0829978B2 JP5151054A JP15105493A JPH0829978B2 JP H0829978 B2 JPH0829978 B2 JP H0829978B2 JP 5151054 A JP5151054 A JP 5151054A JP 15105493 A JP15105493 A JP 15105493A JP H0829978 B2 JPH0829978 B2 JP H0829978B2
- Authority
- JP
- Japan
- Prior art keywords
- cao
- asbestos
- mgo
- sio
- sintered body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アスベストを無害化に
焼結したセラミックス焼結体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic sintered body obtained by sintering asbestos harmlessly.
【０００２】[0002]
【従来の技術】従来からアスベストは耐熱性、断熱性、
絶縁性等の利点から建物の吹き付け材や工業部品等に多
用されていたが、粉塵や発ガン物質とされ有害物質であ
ることは周知であり、その処理が検討されている。2. Description of the Related Art Conventionally, asbestos has heat resistance, heat insulation,
It has been widely used as a spraying material for buildings and industrial parts due to its insulating property, but it is well known that it is a harmful substance such as dust or carcinogenic substance, and its treatment is being studied.
【０００３】廃アスベスト含有物の処理として、コンク
リートや特殊樹脂による固化処理や高温ガラス固化等が
行われているが、固化処理では、アスベストをそのまま
の状態で封蔵処理するためそれらの風化により粉塵とし
て飛散することから経時管理が必要となる。また、高温
ガラス固化処理では、廃アスベスト含有物を溶融混合し
てアスベストの繊維状の構造を分解しガラス化するため
にかなりの高温（1600゜Ｃ以上）が必要なことからその
莫大な設備費用となる。なお、いずれもこれまでの処理
物は産業廃棄物であり、有効使用できなかったのであ
る。As a treatment of waste asbestos-containing substances, solidification treatment with concrete or a special resin, high temperature vitrification, etc. are carried out. In the solidification treatment, asbestos is enclosed in the state as it is, so that it is weathered to generate dust. Therefore, it is necessary to manage with time because it will be scattered. Also, in the high temperature vitrification treatment, a considerably high temperature (1600 ° C or higher) is required to melt and mix the waste asbestos-containing material to decompose the fibrous structure of asbestos and vitrify it. Becomes In addition, in all cases, the products processed so far were industrial wastes and could not be effectively used.
【０００４】なお、アスベストは無機結晶性繊維材（珪
酸塩鉱物）の総称であり、蛇紋石系石綿と角閃石系石綿
とに分類され、蛇紋石系石綿は主に温石綿（クリソイ
ル）として知られる層状珪酸塩であって、重量％でSiO2
３８〜４１、Al2O3１〜５、Fe2O3もしくはFeO０．５〜
５、MgO３９〜４５、Na2O０〜３の基本組成であり、Mg
(OH)2層とSiO2層とが二重格子を形成する際に、Mg(OH)2
層が大きいために反って螺旋管状構造を成している。Asbestos is a general term for inorganic crystalline fiber materials (silicate minerals) and is classified into serpentine-based asbestos and amphibole-based asbestos. Serpentine-based asbestos is mainly known as warm asbestos (chrysoyl). Layered silicates, which are SiO 2 in % by weight
38-41, Al 2 O 3 1-5, Fe 2 O 3 or FeO 0.5-
5, MgO39~45, a basic composition of Na 2 O0~3, Mg
When the (OH) 2 layer and the SiO 2 layer form a double lattice, Mg (OH) 2
Due to the large layer, it is warped to form a spiral tubular structure.
【０００５】一方、角閃石系石綿は直閃石（アンフィラ
イト）、透角閃石（トレモライト）、陽起石（アクチノ
ライト）等で知られ、重量％でSiO2５０〜６０、CaO１
１〜１５、MgO２０〜２５、Na2O及びAl2O3０〜５の基本
組成であって同じく珪酸塩に属し、二重鎖状の構造を成
している。On the other hand, amphibole-type asbestos is known as orthoblemite (amphilite), hornblende (tremorite), yokiseki (actinolite), etc., and SiO 2 50-60, CaO 1 by weight%.
1 to 15, MgO 20 to 25, Na 2 O and Al 2 O 3 0 to 5 are basic compositions, and also belong to silicates and have a double-chain structure.
【０００６】そして有害とされるアスベストの基本構造
は、層状もしくは二重鎖状の珪酸塩であり、その層間部
にイオン径の異なるＭｇ，Ａｌ，Ｆｅ，Ｃａ等が部分配
置することによってなる螺旋管状体を有するものであっ
て、これ以外の珪酸塩は特に有害とするアスベスト構造
ではない。The basic structure of asbestos, which is harmful, is a layered or double-chained silicate, and a spiral formed by partially arranging Mg, Al, Fe, Ca, etc. having different ionic diameters in the interlayer portion. It has a tubular body, and other silicates do not have a particularly harmful asbestos structure.
【０００７】[0007]
【発明が解決しようとする課題】そこで本発明は、有害
化されるアスベストの基本成分が、SiO2，MgO，Al2O3(F
e2O3,CaO)であることから、特にSiO2，MgO，CaOの３成
分の組織調整を行って螺旋管状体を崩し、有害アスベス
ト構造ではない単鎖状珪酸塩の透輝石を主体とした結晶
を加熱によって成形体中に析出させることで無公害化封
蔵し、アスベスト、特に廃アスベスト材の有効利用を図
るものである。Therefore, according to the present invention, the basic components of asbestos that are harmfuld are SiO 2 , MgO, Al 2 O 3 (F
e 2 O 3 , CaO), the structure of SiO 2 , MgO, CaO is adjusted to break the spiral tubular body, and the main element is dipiolite of single-chain silicate which is not harmful asbestos structure. By precipitating the crystals thus formed in a molded body by heating, they can be contained in a pollution-free environment for effective use of asbestos, particularly waste asbestos materials.
【０００８】[0008]
【課題を解決するための手段】このため本発明は、アス
ベスト含有物に、SiO2、CaO、MgOを配合すると共に、低
融化材としてNa2O，Al2O3，K2O，B2O3，LiO2，F，BaOの
いずれか一種又は複数種又はこれらの化合物と、粘土等
の可塑材を混合して、化学組成がモル比でCaO／MgO＝0.
8〜2.5及びSiO2／（CaO＋MgO）＞2.0となるよう生地調
整し、成型後加熱することで焼結体中に透輝石（ディオ
プサイト）を主とした結晶を生成させて構成のセラミッ
クス焼結体である。Therefore, according to the present invention, asbestos-containing material is mixed with SiO 2 , CaO and MgO and used as a low-melting material such as Na 2 O, Al 2 O 3 , K 2 O and B 2 Any one or more of O 3 , LiO 2 , F, and BaO or their compounds and a plasticizer such as clay are mixed, and the chemical composition is CaO / MgO = 0.
The material is adjusted to 8 to 2.5 and SiO 2 /(CaO+MgO)>2.0, and after the molding, heating is performed to generate crystals mainly composed of diopside (diopside) in the sintered body. It is a union.
【０００９】なお、アスベスト含有物に、SiO2４０〜８
０重量％、CaO３〜１８重量％、MgO２〜１５重量％を配
合すると共に、低融化材を１０〜７０重量％配合し、化
学組成がモル比でCaO／MgO＝1.0〜1.5及びSiO2／（CaO
＋MgO）＞2.0となるよう生地調整することが最適であ
る。The asbestos-containing material contains SiO 2 40 to 8
0 wt%, CaO 3 to 18 wt% and MgO 2 to 15 wt% are blended, and the low-melting material is blended 10 to 70 wt%, and the chemical composition is a molar ratio of CaO / MgO = 1.0 to 1.5 and SiO 2 / ( CaO
It is best to adjust the dough so that + MgO)> 2.0.
【００１０】ここで、焼結体中に生成する透輝石（ディ
オプサイト）は、化学式CaMg（Si2O6）で表わされ、Fe
を少量含むものもあるが、（SiO3）nの2-乗で示される
珪酸塩の酸素共有間にCaとMgが配置した単鎖状珪酸塩で
あり、CaO−MgO−SiO2系では1050゜Ｃ域より結晶が形成
されて1400゜Ｃ域で溶解するのである。したがって、無
害の単鎖状珪酸塩の構造の焼結体となるのである。The diopside (diopsite) formed in the sintered body is represented by the chemical formula CaMg (Si 2 O 6 ) and Fe
Some of them contain a small amount, but (SiO 3 ) n is a single-chain silicate in which Ca and Mg are arranged between the oxygen shares of the silicate represented by the power of 2, and in the CaO-MgO-SiO 2 system, 1050 Crystals are formed from the ° C region and dissolve in the 1400 ° C region. Therefore, the sintered body has a harmless single-chain silicate structure.
【００１１】アスベスト含有物は、工業用の廃アスベス
ト材はもちろん、建築用の吹き付け廃アスベスト材（例
えば、アスベストセメントやアスベストモルタル）等各
種の廃アスベスト材の使用が可能である。As the asbestos-containing material, not only industrial waste asbestos materials but also various waste asbestos materials such as sprayed waste asbestos materials for construction (eg, asbestos cement and asbestos mortar) can be used.
【００１２】アスベスト含有物に、SiO2、CaO、MgOを配
合し、さらに化学組成がモル比でCaO／MgO＝0.8〜2.5及
びSiO2／（CaO＋MgO）＞2.0となるよう調整するのは、
加熱して焼結体中に透輝石の結晶を形成させるためであ
る。SiO2、CaO、MgOの配合量は、アスベスト含有物の組
成にもよるため限定されないが、SiO2４０〜８０重量
％、CaO３〜１８重量％、MgO２〜１５重量％を配合する
ことがモル比調整のため妥当である。SiO 2 , CaO, and MgO are blended with the asbestos-containing material, and the chemical composition is adjusted so that the molar ratios are CaO / MgO = 0.8 to 2.5 and SiO 2 /(CaO+MgO)>2.0.
This is because crystals of diopside are formed in the sintered body by heating. The amount of SiO 2 , CaO, and MgO to be added is not limited because it depends on the composition of the asbestos-containing material, but it is preferable to add 40 to 80% by weight of SiO 2 , 3 to 18% by weight of CaO, and 2 to 15% by weight of MgO in a molar ratio. Appropriate for adjustment.
【００１３】また、上記のモル比調整範囲外では透輝石
の結晶が生成でき難くなるのであり、CaO／MgO＝1.0〜
1.5及びSiO2／（CaO＋MgO）＞2.0となるよう生地調整す
ることが最適である。この調整のために用いる原料とし
ては、SiO2供給源として長石や珪砂、CaO供給源として
炭酸カルシウム、MgO供給源としてマグネサイトが一般
的であるが、特に限定するものではない。Further, it is difficult to form diopside crystals outside the above range of adjusting the molar ratio, and CaO / MgO = 1.0 to
It is optimal to adjust the dough so that 1.5 and SiO 2 /(CaO+MgO)>2.0. As a raw material used for this adjustment, feldspar or silica sand is generally used as a SiO 2 supply source, calcium carbonate is used as a CaO supply source, and magnesite is used as a MgO supply source, but is not particularly limited.
【００１４】また、Na2O，Al2O3，K2O，B2O3，LiO2，
F，BaOのいずれか一種又は複数種或いはこれらの化合物
を混合するのは、低融化材としての混合で、加熱温度を
約1100〜1350゜Ｃに下げるためである。望ましくは1000
゜Ｃ前後で溶融・融着する材料がよい。また、その混合
量としては１０〜７０重量％がよいが、少ないと加熱温
度の上昇することから４０重量％以上の混合が最適であ
る。Further, Na 2 O, Al 2 O 3 , K 2 O, B 2 O 3 , LiO 2 ,
The reason why one or more of F and BaO or their compounds are mixed is to lower the heating temperature to about 1100 to 1350 ° C. by mixing as a low melting material. Preferably 1000
A material that melts and fuses at around ° C is preferable. The mixing amount is preferably 10 to 70% by weight, but if it is too small, the heating temperature rises, so mixing of 40% by weight or more is optimal.
【００１５】即ち、この低融化材成分は、加熱により液
相を形成し、アスベスト含有物中のアスベスト構造を浸
食（溶融）する作用をするものであり、アスベストの螺
旋管状体構造を変形させると共に、液相中CaO−MgO−Si
O2の三成分間での共晶反応を進行させるものであって、
透輝石が形成を始める1050゜Ｃ域以下でその作用をもた
せるためである。なお、この低融化材成分は、工業用原
料や窯業鉱物等により供給できるが、この他、ガラス
粉、例えばフロートガラス、ビンガラス、乳白ガラス等
を使用してもよい。That is, the low melting material component has a function of forming a liquid phase by heating and eroding (melting) the asbestos structure in the asbestos-containing material, and deforming the spiral tubular structure of asbestos. , In liquid phase CaO-MgO-Si
Which promotes a eutectic reaction between the three components of O 2 ,
This is because the diopside has its function below 1050 ° C where it begins to form. The low-melting material component can be supplied by industrial raw materials, ceramic minerals, or the like, but in addition to this, glass powder such as float glass, bottle glass, and opalescent glass may be used.
【００１６】[0016]
【作用】化学組成がモル比でCaO／MgO＝0.8〜2.5及びSi
O2／（CaO＋MgO）＞2.0となるよう調整したため、且つ
低融化材による約1100〜1350゜Ｃの低温加熱によって焼
結体中に透輝石を主とした結晶を生成できて無害のセラ
ミックスが焼結できるのである。これはアスベストを分
解溶融するのではなく、低融化材の共存により液相中Ca
O−MgO−SiO2の三成分間での共晶反応を起こすものであ
る。[Function] Chemical composition is molar ratio CaO / MgO = 0.8-2.5 and Si
Since O 2 /(CaO+MgO)>2.0 was adjusted, and by heating at low temperature of about 1100 to 1350 ° C by the low-melting material, crystals mainly composed of diopside can be formed in the sintered body and harmless ceramics are burned. You can conclude. This is because the asbestos does not decompose and melt, but it does not dissolve Ca in the liquid phase due to the coexistence of the low melting material.
Those causing eutectic reaction between three components of O-MgO-SiO 2.
【００１７】なお、焼結体中には透輝石の他、フォルス
テライト、オケルマナイトまたはエンスタタイト等のCa
O−MgO−SiO2系より析出可能な結晶が共生析出すること
もあり、さらに低融化材を多く配合した場合はこれらの
成分より析出可能な微少結晶が共生析出することもある
が無害であり問題はない。In addition to diopside, Ca such as forsterite, akermanite or enstatite is contained in the sintered body.
O-MgO-SiO 2 system than is possible precipitation crystals sometimes coexisting precipitation, if further contain a lot of low-melting material is harmless sometimes precipitated possible fine crystals from these components are symbiotic precipitation No problem.
【００１８】[0018]
【実施例１】成分が重量％で、SiO2４８％、CaO１５
％、MgO５％及びAl2O3，Na2O，Fe2O3の合計で４％であ
るアスベスト含有物に、CaO／MgO＝1.0，SiO2／（CaO＋
MgO）=2.0のモル比となるようマグネサイト８．１％、
長石１９．５％及び炭酸カルシウム３．４％を用いて配
合調整し、これを平均粒径が１０〜２０μｍとなるよう
湿式粉砕して乾燥したものをＡ配合物とした。Example 1 Ingredients are wt%, SiO 2 48%, CaO 15
%, MgO 5% and Al 2 O 3 , Na 2 O, Fe 2 O 3 total 4%, asbestos-containing material, CaO / MgO = 1.0, SiO 2 / (CaO +
MgO) = 2.0 molar ratio of magnesite 8.1%,
A formulation was prepared by blending and adjusting using 19.5% of feldspar and 3.4% of calcium carbonate, wet-milling and drying this so as to have an average particle size of 10 to 20 μm.
【００１９】このＡ配合物に、さらに表１に示す三種類
のモル比（組成）となるよう融剤成分及び粘土を添加し
調合した混合原料を、通常の窯業製品製造法により成形
圧２５０Kg/cm2でプレス成型し、９０×９０×１０mmの
三種類の生地成型体を得た。A mixed raw material prepared by adding a fluxing agent component and clay to the mixture A so as to have three kinds of molar ratios (compositions) shown in Table 1 and molding pressure of 250 Kg / Press molding was carried out at cm 2 to obtain three types of dough molded bodies of 90 × 90 × 10 mm.
【００２０】[0020]
【表１】 [Table 1]
【００２１】なお、SiO2は長石や珪砂、CaOは炭酸カル
シウムやドロマイト、MgOはマグネサイト、Na2Oは炭酸
ナトリウム、B2O3はホウ砂、LiO2は炭酸リチウム、Al2O
3はアルミナや粘土等を材料としている。三種類の生地
成型体の加熱処理条件及びこれより得られた成形体の析
出結晶相ならびに特性結果を表２に示す。SiO 2 is feldspar or silica sand, CaO is calcium carbonate or dolomite, MgO is magnesite, Na 2 O is sodium carbonate, B 2 O 3 is borax, LiO 2 is lithium carbonate, Al 2 O.
3 is made of alumina or clay. Table 2 shows the heat treatment conditions of the three types of dough compacts, the precipitated crystal phases of the compacts obtained therefrom, and the characteristic results.
【００２２】[0022]
【表２】 [Table 2]
【００２３】加熱処理によって得られた成形体の外観
は、ＮO１のものが山ぶき色を示すマッド調で、ＮO２の
ものが淡山ぶき色を示す平滑面であり、ＮO３のものが
ベージュ色による平滑面で多少の光沢を有するものであ
り、夫々に不純物によると思われる黒班点が存在した。The appearance of the molded product obtained by the heat treatment is a mud-like appearance in which NO1 is a mountain-yellow color, a smooth surface in which NO2 is a light mountain-colored color, and a beige-colored surface is in NO3. There was some gloss, and there were black spots that were probably due to impurities.
【００２４】また、これらの加熱成形体をＸ線回析によ
り検討したところ、出発物質であるアスベスト及び成分
調整配合物の回析線は消滅し、新たに主体結晶としてデ
ィオプサイト、ならびにCaO−MgO−SiO2系の微少なアス
ベストではない結晶相が析出していることがわかった。When these heat-molded bodies were examined by X-ray diffraction, the diffraction lines of the asbestos as the starting material and the component-adjusted compound disappeared, and diopsite and CaO- were newly added as main crystals. it was found that the crystalline phase is not a very small asbestos of MgO-SiO 2 system is deposited.
【００２５】さらに、これら加熱成形体をＳＥＭ観察し
たところガラス相による液相で覆われた相組織であるこ
とが確認でき、以上のことからアスベストは成分調整配
合物と共にCaO−MgO−SiO2間で共晶反応によりディオプ
サイトを主体結晶とする結晶を形成し、これらの結晶は
ガラスマトリックスで覆われた相組織中に存在すること
からアスベストの無公害化が行われたことがわかった。
図１はそのＮO２の電子顕微鏡写真であり、螺旋管形状
は見当らなかったのである。Further, SEM observation of these heat-molded bodies confirmed that they had a phase structure covered with a liquid phase of a glass phase, and as a result, asbestos was formed between CaO-MgO-SiO 2 together with the component adjusting composition. As a result, it was found that asbestos was made pollution-free by forming a crystal mainly composed of diopsite by the eutectic reaction and existing in the phase structure covered with the glass matrix.
FIG. 1 is an electron micrograph of NO2, in which the spiral tube shape was not found.
【００２６】[0026]
【実施例２】実施例１のＡ配合物に、三種類のモル比
（組成）となるよう表３に示すガラス粉と粘土と顔料を
添加し調合した混合原料を、実施例１と同様な操作によ
りプレス成型し、９０×９０×１０mmの三種類の生地成
型体を得た。Example 2 The same raw materials as in Example 1 were prepared by adding the glass powder, clay and pigment shown in Table 3 to the mixture A of Example 1 so as to have three kinds of molar ratios (compositions). Press molding was carried out by the operation to obtain three kinds of dough molded bodies of 90 × 90 × 10 mm.
【００２７】[0027]
【表３】 [Table 3]
【００２８】なお、ガラス粉はＮO４，５は板ガラス組
成（ソーダ・ライム系）、ＮO６は乳白ガラス組成のも
のを用い、顔料は通常窯業製品に着色するものでMn−Fe
−CO系の黒を使用した。板ガラス粉の組成は、SiO2７３
％、Na2O１３．１％、Al2O3１．８％、CaO７．１％、Mg
O４％、K2O１％であり、乳白ガラス粉の組成は、SiO2６
５％、Na2O３．８％、Al2O3６．５％、CaO１０％、F
５．２％、K2O９．５％である。これらの三種類の生地
成型体の加熱処理条件及びこれより得られた成形体の析
出結晶相ならびに特性結果を表４に示す。As the glass powder, NO4 and 5 are plate glass compositions (soda-lime type), NO6 is opalescent glass composition, and pigments are usually used for coloring ceramic products.
-CO type black was used. The composition of the plate glass powder is SiO 2 73
%, Na 2 O 13.1%, Al 2 O 3 1.8%, CaO 7.1%, Mg
O 4% and K 2 O 1%, and the composition of the opalescent glass powder is SiO 2 6
5%, Na 2 O 3.8%, Al 2 O 3 6.5%, CaO 10%, F
It is 5.2% and K 2 O is 9.5%. Table 4 shows the heat treatment conditions for these three types of dough compacts, the precipitated crystal phases of the compacts thus obtained, and the characteristic results.
【００２９】[0029]
【表４】 [Table 4]
【００３０】加熱処理によって得られた成形体の外観
は、ＮO４のものが黒色の発色示す平滑面で、ＮO５のも
のが淡山ぶき色を示す平滑面であり、ＮO６のものがク
リーム色を発し白味を帯びた平滑面であり、夫々多少の
光沢を有するものであった。また、夫々に不純物による
と思われる黒班点はあるものの良好な成形体として得る
ことができた。なお、これらの加熱成形体の検討は、実
施例１と同様の方法により行った。それらの結果は、実
施例１と類似するものであり、ここでもアスベストの無
公害化が行われたことがわかった。As for the appearance of the molded product obtained by the heat treatment, the one with NO4 is a smooth surface showing a black color, the one with NO5 is a smooth surface showing a light yellowish tinge, and the one with NO6 is a cream color and is white. It was a smooth surface with a taste and each had some luster. In addition, although there were black spots each of which was considered to be due to impurities, a good molded product could be obtained. The examination of these heat-molded articles was carried out by the same method as in Example 1. The results are similar to those in Example 1, and it was found that asbestos was rendered pollution-free here as well.
【００３１】[0031]
【発明の効果】本発明によると、成分調整と低融化材に
よる低温加熱により焼結体中に単鎖状珪酸塩である透輝
石を主とした結晶を生成させることでアスベストを無公
害化でき、特に廃アスベスト材や廃カレット、屑ガラス
などの使用によって廃棄物を有効使用できる効果が大き
く、高い強度で耐候性に優れることからレンガやタイル
等の窯業製品の他、建材や舗装材等に広く使用でき、高
温加熱を必要としないことから安価に製造処理できるの
である。請求項２では、安定して透輝石を主とした結晶
を生成できるのである。定EFFECTS OF THE INVENTION According to the present invention, asbestos can be rendered pollution-free by producing crystals mainly composed of diopside stone, which is a single-chain silicate, in the sintered body by adjusting the components and heating at a low temperature with a low melting material. , Especially the use of waste asbestos materials, waste cullet, scrap glass, etc. has a great effect of effectively using the waste, and because it has high strength and excellent weather resistance, it can be used not only for ceramic products such as bricks and tiles but also for construction materials and paving materials. Since it can be widely used and does not require high temperature heating, it can be manufactured at low cost. According to the second aspect, it is possible to stably generate crystals mainly composed of diopside. Fixed
【図１】本発明の実施例１の焼結体構造の電子顕微鏡写
真である。でFIG. 1 is an electron micrograph of a sintered body structure of Example 1 of the present invention. so
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 35/00 35/82 ＺＡＢ Ｂ０９Ｂ 3/00 ３０３ Ａ Ｃ０４Ｂ 35/00 Ｖ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display area C04B 35/00 35/82 ZAB B09B 3/00 303 A C04B 35/00 V
Claims (2)
配合すると共に、低融化材としてNa2O，Al2O3，K2O，B2
O3，LiO2，F，BaOのいずれか一種又は複数種又はこれら
の化合物と、粘土等の可塑材を混合して、化学組成がモ
ル比でCaO／MgO＝0.8〜2.5及びSiO2／（CaO＋MgO）＞2.
0となるよう生地調整し、成型後加熱することで焼結体
中に透輝石を主とした結晶を生成させて成るセラミック
ス焼結体。1. An asbestos-containing material containing SiO 2 , CaO, MgO, and Na 2 O, Al 2 O 3 , K 2 O, B 2 as a low melting material.
Any one or more kinds of O 3 , LiO 2 , F, and BaO or their compounds and a plasticizer such as clay are mixed, and the chemical composition is CaO / MgO = 0.8 to 2.5 and SiO 2 / ( CaO + MgO)> 2.
A ceramic sintered body obtained by adjusting the dough to be 0, and heating after molding to generate crystals mainly composed of diopside.
量％、CaO３〜１８重量％、MgO２〜１５重量％を配合す
ると共に、低融化材を１０〜７０重量％配合し、化学組
成がモル比でCaO／MgO＝1.0〜1.5及びSiO2／（CaO＋Mg
O）＞2.0となるよう生地調整した請求項１のセラミック
ス焼結体。2. Asbestos-containing material is compounded with 40 to 80% by weight of SiO 2 , 3 to 18% by weight of CaO and 2 to 15% by weight of MgO, and 10 to 70% by weight of a low-melting material, and a chemical composition of Ratio of CaO / MgO = 1.0 to 1.5 and SiO 2 / (CaO + Mg
The ceramic sintered body according to claim 1, wherein the material is adjusted so that O)> 2.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5151054A JPH0829978B2 (en) | 1993-05-27 | 1993-05-27 | Ceramics sintered body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5151054A JPH0829978B2 (en) | 1993-05-27 | 1993-05-27 | Ceramics sintered body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06340470A JPH06340470A (en) | 1994-12-13 |
| JPH0829978B2 true JPH0829978B2 (en) | 1996-03-27 |
Family
ID=15510293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5151054A Expired - Lifetime JPH0829978B2 (en) | 1993-05-27 | 1993-05-27 | Ceramics sintered body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0829978B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK1919637T3 (en) * | 2005-06-30 | 2012-01-16 | Ari Technologies Inc | System and method for accelerating the conversion of asbestos by a mineralogical transformation process |
| JP4540686B2 (en) * | 2007-03-29 | 2010-09-08 | カワサキプラントシステムズ株式会社 | Melting furnace and melting method for melting waste including asbestos |
| WO2008139635A1 (en) | 2007-05-14 | 2008-11-20 | Toshinori Morizane | Modifier for silicate-containing fibrous substance, method of modifying the same and modified material |
| JP4406090B2 (en) * | 2007-06-01 | 2010-01-27 | 株式会社環境アネトス | Asbestos decomposition treatment agent and asbestos decomposition treatment method |
| CN101979359B (en) * | 2010-09-20 | 2013-02-13 | 景德镇陶瓷学院 | Ultra-low temperature sintered ceramic tiles and preparation method thereof |
| CN103864407A (en) * | 2014-03-04 | 2014-06-18 | 北京科技大学 | Pyroxene ceramic and preparation method thereof |
| CN115572149B (en) * | 2022-10-18 | 2023-06-20 | 广西欧神诺陶瓷有限公司 | Colored ceramic tile prepared from tailings and preparation method thereof |
-
1993
- 1993-05-27 JP JP5151054A patent/JPH0829978B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06340470A (en) | 1994-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chindaprasirt et al. | Synergistic effect of fly ash and glass cullet additive on properties of fire clay bricks | |
| US4087285A (en) | Method for strengthening vitreous products and composition boards | |
| JPH0829978B2 (en) | Ceramics sintered body | |
| CN105801149A (en) | Fire-resistant tile | |
| EP0808570A1 (en) | Process for producing antibacterial glaze, antibacterial member, and process for producing the member | |
| JP3094226B2 (en) | Crystallized glass composite ceramics and method for producing the same | |
| RU2081088C1 (en) | Ceramic mass | |
| EP3943464A1 (en) | A novel lightweight ceramic sand formulation from lignite fly ash and method of preparation thereof | |
| EP0696553B1 (en) | Pyrocerams obtained from asbestos containing wastes and wastes of hydrometallurgy-industry and process for their preparation | |
| JPH06134438A (en) | Method for treating waste asbestos material and manufacture of ceramic product using the same | |
| US3928058A (en) | Expanded synthetic calcium silicates | |
| JP2796242B2 (en) | Manufacturing method of incinerated ash sintered body | |
| KR20190088162A (en) | White Ceramic Composition Comprising Powder from Amphibole and Manufacturing Method thereof | |
| JPS5827223B2 (en) | Manufacturing method of sintered body | |
| JPH05138147A (en) | Treatment of waste asbestos material and production of ceramic product using the material | |
| DE539682C (en) | Refractory mass | |
| DE720142C (en) | Heat-resistant building material | |
| RU2226514C1 (en) | Raw meal and a method for manufacturing ceramic products | |
| JPH07300380A (en) | Method for producing glazing agent for pottery roof tile | |
| JPS58145628A (en) | Block made of glassy material | |
| KR950003230A (en) | Elvan Glaze and Manufacturing Method of Elvan Glaze | |
| JP4275381B2 (en) | Tile manufacturing method using molten slag | |
| DE112761C (en) | ||
| AU2002249548A1 (en) | Process for the production of ceramic tiles | |
| RU2055044C1 (en) | Lime mortar |